Procom PCD18T User Manual page 14

INSTALLATION
Continued
CAUTION: Two gas line installation at the same time is forbidden.
Heater is pre-set at factory for propane gas, no changes are required for connecting to propane. Only a qualified
installer or service technician can perform gas selection and connecting to gas supply.
CAUTION: To avoid gas leakage at the inlet of regulator, a qualified installer or service technician
must use hex plug with sealant.
For changing from propane to natural gas supply:
1. Overturn chassis, See Figure 15.
2. For NATURAL GAS, press knob using a flat screw driver with a blade the thickness of a quarter and turn
knob clockwise
locked in the NG position. Do not operate heater between locked positions!
3. Remove hex plug (with wrench provided) from natural gas inlet of regulator and install into LP inlet of
regulator; use thread sealant to assure there are no leaks.
For changing from natural gas supply to propane supply:
1. Overturn chassis, See Figure 15.
2. For propane gas, press in knob using a flat screw driver with a blade the thickness of a quarter and turn
knob counterclockwise
be locked in the LP position. Do not operate heater between locked positions.
3. Remove hex plug from liquid propane inlet of regulator and install into NG inlet of regulator; use thread
sealant to assure there are no leaks.
until the knob locks into the NG position (see Figure 16). Selection valve must be
until the knob locks into the LP position, see Figure 17. Selection valve must
14
Figure 15
Figure 16
Figure 17